INKZALL™ Liquid Paint Markers are valve-action markers built for the toughest conditions. The durable acrylic nib performs on surfaces from -10°C to +145°C, including rough, dirty, greasy, or dark surfaces where traditional markers struggle. Ideal for concrete, black pipe, aluminum, PVC, steel, stainless steel, rubber, and tyres, the quick-drying ink sets in just 10 seconds. Water- and UV-resistant, permanent markings last up to 6 months. The metal barrel ensures construction-site durability, and xylene-free paint makes it safe to use. How to use: Shake with the cap on, remove the cap, and pump carefully until ink flows into the nib.